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[ARM] mv78xx0: wire i2c support
All the pieces were ready, just matter of assembling them together. Signed-off-by: Riku Voipio <riku.voipio@iki.fi> Signed-off-by: Nicolas Pitre <nico@marvell.com>
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5b99d53483
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4 changed files with 87 additions and 0 deletions
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@ -14,6 +14,7 @@
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#include <linux/serial_8250.h>
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#include <linux/mbus.h>
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#include <linux/mv643xx_eth.h>
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#include <linux/mv643xx_i2c.h>
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#include <linux/ata_platform.h>
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#include <linux/ethtool.h>
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#include <asm/mach/map.h>
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@ -518,6 +519,81 @@ void __init mv78xx0_ge11_init(struct mv643xx_eth_platform_data *eth_data)
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platform_device_register(&mv78xx0_ge11);
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}
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/*****************************************************************************
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* I2C bus 0
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****************************************************************************/
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static struct mv64xxx_i2c_pdata mv78xx0_i2c_0_pdata = {
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.freq_m = 8, /* assumes 166 MHz TCLK */
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.freq_n = 3,
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.timeout = 1000, /* Default timeout of 1 second */
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};
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static struct resource mv78xx0_i2c_0_resources[] = {
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{
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.name = "i2c 0 base",
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.start = I2C_0_PHYS_BASE,
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.end = I2C_0_PHYS_BASE + 0x1f,
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.flags = IORESOURCE_MEM,
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}, {
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.name = "i2c 0 irq",
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.start = IRQ_MV78XX0_I2C_0,
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.end = IRQ_MV78XX0_I2C_0,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device mv78xx0_i2c_0 = {
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.name = MV64XXX_I2C_CTLR_NAME,
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.id = 0,
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.num_resources = ARRAY_SIZE(mv78xx0_i2c_0_resources),
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.resource = mv78xx0_i2c_0_resources,
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.dev = {
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.platform_data = &mv78xx0_i2c_0_pdata,
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},
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};
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/*****************************************************************************
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* I2C bus 1
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****************************************************************************/
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static struct mv64xxx_i2c_pdata mv78xx0_i2c_1_pdata = {
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.freq_m = 8, /* assumes 166 MHz TCLK */
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.freq_n = 3,
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.timeout = 1000, /* Default timeout of 1 second */
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};
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static struct resource mv78xx0_i2c_1_resources[] = {
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{
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.name = "i2c 1 base",
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.start = I2C_1_PHYS_BASE,
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.end = I2C_1_PHYS_BASE + 0x1f,
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.flags = IORESOURCE_MEM,
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}, {
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.name = "i2c 1 irq",
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.start = IRQ_MV78XX0_I2C_1,
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.end = IRQ_MV78XX0_I2C_1,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device mv78xx0_i2c_1 = {
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.name = MV64XXX_I2C_CTLR_NAME,
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.id = 1,
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.num_resources = ARRAY_SIZE(mv78xx0_i2c_1_resources),
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.resource = mv78xx0_i2c_1_resources,
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.dev = {
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.platform_data = &mv78xx0_i2c_1_pdata,
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},
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};
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void __init mv78xx0_i2c_init(void)
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{
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platform_device_register(&mv78xx0_i2c_0);
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platform_device_register(&mv78xx0_i2c_1);
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}
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/*****************************************************************************
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* SATA
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@ -44,6 +44,7 @@ void mv78xx0_uart0_init(void);
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void mv78xx0_uart1_init(void);
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void mv78xx0_uart2_init(void);
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void mv78xx0_uart3_init(void);
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void mv78xx0_i2c_init(void);
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extern struct sys_timer mv78xx0_timer;
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@ -14,6 +14,7 @@
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#include <linux/ata_platform.h>
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#include <linux/mv643xx_eth.h>
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#include <linux/ethtool.h>
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#include <linux/i2c.h>
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#include <mach/mv78xx0.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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@ -39,6 +40,11 @@ static struct mv_sata_platform_data db78x00_sata_data = {
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.n_ports = 2,
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};
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static struct i2c_board_info __initdata db78x00_i2c_rtc = {
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I2C_BOARD_INFO("ds1338", 0x68),
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};
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static void __init db78x00_init(void)
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{
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/*
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@ -60,6 +66,8 @@ static void __init db78x00_init(void)
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mv78xx0_sata_init(&db78x00_sata_data);
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mv78xx0_uart0_init();
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mv78xx0_uart2_init();
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mv78xx0_i2c_init();
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i2c_register_board_info(0, &db78x00_i2c_rtc, 1);
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} else {
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mv78xx0_uart1_init();
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mv78xx0_uart3_init();
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@ -102,6 +102,8 @@
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#define DEV_BUS_VIRT_BASE (MV78XX0_REGS_VIRT_BASE | 0x10000)
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#define SAMPLE_AT_RESET_LOW (DEV_BUS_VIRT_BASE | 0x0030)
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#define SAMPLE_AT_RESET_HIGH (DEV_BUS_VIRT_BASE | 0x0034)
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#define I2C_0_PHYS_BASE (DEV_BUS_PHYS_BASE | 0x1000)
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#define I2C_1_PHYS_BASE (DEV_BUS_PHYS_BASE | 0x1100)
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#define UART0_PHYS_BASE (DEV_BUS_PHYS_BASE | 0x2000)
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#define UART0_VIRT_BASE (DEV_BUS_VIRT_BASE | 0x2000)
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#define UART1_PHYS_BASE (DEV_BUS_PHYS_BASE | 0x2100)
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